## Summary
- Show success toast notification after user is added
- Refresh user list and navigate to 'normal' filter on page 1 to display
the newly added user
## Problem
When adding a user in Admin -> Users, the page had no feedback after
submission (as reported in #1457).
**Root cause:** The code only refreshed the user list if the current
filter was "all" or "staff", but the default filter is "normal".
Additionally, there was no success toast notification.
## Solution
1. Added toast notification to confirm successful user creation
2. After adding user, navigate to "normal" filter page 1 and refresh the
list so the new user is visible
## Test plan
1. Go to Admin -> Users
2. Click "Add User"
3. Submit user information
4. ✅ Success toast should appear
5. ✅ Page should navigate to "normal" filter
6. ✅ Newly added user should be visible in the list
Fixes#1457
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Co-authored-by: LinkinStars <linkinstar@foxmail.com>
Gregorius Bima Kharisma Wicaksana
c2a62804b0